Vernier Go Direct pH probe calibration

This is a how to calibrate a Vernier Go Direct pH probe using Graphical Analysis.
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[@shashikantkambli817]

Hi, Don't we need to calibrate for the 3 value of Ph?

[@stuartatscientrific2151]

Hi, only if you need a high level of resolution (certainty). In high school level, generally two points is fine.
The only time I have seen it necessary for the three point calibration at high school level was when the student was investigating the shift in buffer solutions when exposed to different temperatures.
Enjoy your probe!